Dispersible {60 -{11 and {62 -substituted anthraquinone dyestuffs containing an -alkyleneocoor group

ABSTRACT

Dyestuffs of the formula   WHEREIN W is chlorine, bromine, cyano, lower alkyl, lower alkoxy carbonyl, phenoxycarbonyl, lower alkythio, phenylthio, lower alkyl sulfonyl or a grouping of the formula WHEREIN Z is -CO-or -SO2- and R1 and R2 are each independently hydrogen or lower alkyl, Y&#39;&#39; is lower alkylene, -CH2CH2OCH2CH2- or -CH2CH2CH2-O-CH2CH2CH2, X is a direct bond, -O-, -S-, -NH-, -COHN- or -SO2NH-, R&#39;&#39;&#39;&#39; is lower alkyl, cyclohexyl, phenyl or phenyl substituted by chlorine, lower alkyl or lower alkoxy, or bromine, THE NUCLEUS B is either unsubstituted or is further monosubstituted by chlorine, lower alkyl or lower alkoxy, E is NH2, OH or NHT, and T is lower alkyl, cyclohexyl, phenyl, lower alkyl phenyl or phenoxyphenyl.

lllnited States Patent [191 Kolliker et a1.

[54] DISPERSIBLE 0- AND B-SUBSTITUTED ANTHRAQUINONE DYESTUFFS CONTAINING AN ALKYLENEOCOOR GROUP [75] Inventors: Hans-Peter Kolliker, Munchenstein/Basel-Land; Alfred Staub, Binningen/Basel-Land; Peter Hinderrnann, Bottmingen/Basel-Land,

all of Switzerland [73] Assignee: Ciba-Geigy AG, Basel, Switzerland [22] Filed: Apr. 1, 1970 [21] Appl. No.: 24,809

3,097,909 7/ 1963 Rhyner et al. ..260/376 X 3,379,738 4/1968 Wallace et al. .....260/376 3,442,914 5/1969 Braun et a1. ..260/376 FOREIGN PATENTS oR APPLICATIONS 44/24909 10/1969 Ja an; ..260/376 Primary Examinr-Floyd D. l-ligel Attorney-Wenderoth, Lind & Ponack May 22, 1973 ABSTRACT Dyestuffs of the formula ii NH- i o wherein W is chlorine, bromine, cyano, lower alkyl, lower alkoxy carbonyl, phenoxycarbonyl, lower alkythio, phenylthio, lower alkyl sulfonyl or a grouping of the formula wherein Z is CO--or SO and R and R are each independently hydrogen or lower alkyl,

Y is lower alkylene, CH CH OCH CH or CH CH C1-1 O-C1I C1-1 CH X is a direct bond, O, S, --NH--, COl-l- N-- or SO NH,

R" is lower alkyl, cyclohexyl, phenyl or phenyl substituted by chlorine, lower alkyl or lower alkoxy, or bromine,

the nucleus B is either unsubstituted or is further mono-substituted by chlorine, lower alkyl or lower alkoxy,

E is Nl-l OH or NHT, and T is lower alkyl,

cyclohexyl, phenyl, lower alkyl phenyl or phenoxyphenyl.

5 Claims, N0 Drawings 1 DISPERSIBLE 11- AND B-SUBSTITUTED ANTHRAQUINONE DYESTUFFS CONTAINING AN ALKYLENEOCOOR GROUP DESCRIPTION OF THE INVENTION The present invention relates to difficultly watersoluble anthraquinone dyestuffs, usable as dispersion dyestuffs, to processes for their production, to the use of these anthraquinone dyestuffs for the dyeing or printing of synthetic organic textile fibers, especially textile fibers made from linear polyesters of aromatic polycarboxylic acids with polyfunctional alcohols, or

made from cellulose esters and, the textile fibers dyed or printed with said dyestuffs.

It has been found that, difficultly water-soluble anthraquinone dyestuffs being free from watersolubilizing groups dissociating acid in water and corresponding to the Formula I,

are characterized by particularly advantageous properties, e.g., good affinity on polyester fibers combined with good fastness to light and sublimation of the dyeings produced therewith.

In the above Formula I,

A. represents an cat-anthraquinonyl radical containing in the B-positions hydrogen, halogen or a grouping which is bound to the anthraquinonyl radical by means of an aliphatic carbon atom, by means of a carbon atom containing bound diand/or trivalent hetero atoms, or by means of a hetero atom,

Q represents an unsubstituted or substituted arylene radical,

X represents the direct bond, a hetero atom or a ero grouping,

n represents one of the numbers 1 or 2,

Y represents an alkylene group, optionally substituted by a hydroxyl group or optionally interrupted by oxygen,

het-

R represents an optionally substituted aliphatic, cyv cloaliphatic or aromatic radical.

The anthraquinone dyestufis of Formula I are obtained by reacting an anthraquinone compound of the Formula II,

wherein A, Q, X, Y and n have the meaning given under Formula I, with a halogen formic acid ester of the Formula lll,

Hal COOR (Ill) wherein Hal represents chlorine or bromine and R has -the meaning given under Formula I.

thronyl, isothiazoleanthronyl and thiopheneanthronyl compounds.

As halogen, the anthraquinonyl radical A can contain in the B-positions, e.g., fluorine, chlorine or bromine. As mono-valent groupings in the B-positions, bound to the anthraquinonyl radical by means of an aliphatic carbon atom, A can contain for example, lower alkyl groups, optionally substituted by phenyl, hydroxyl or by the grouping OCOOR such as the methyl, benzyl, hydroxymethyl or the ROOC--OCH -group. As monovalent groupings which are bound by means of a carbon atom containing bound diand/or trivalent hetero atoms, are for example the cyano group, a carboxylic acid amide group, optionally mono or disubstituted by lower alkyl groups, or carboxylic acid ester groups, e.g. a lower alkoxycarbonyl groups such as the carbomethoxy, carbethoxy, carboisopropoxy or carbobutoxy group, and as monovalent groupings which are bound by means of a hetero atom to the anthraquinonyl radical, are for example ether groups such as lower alkoxy or the phenoxy group, thioether groups such as lower alkylthio or phenylthio groups, lower alkylsulphonyl groups, sulphonic acid ester groups, such as lower alkoxy-sulphonyl groups, or sulphonic acid amide groups, optionally monoor di-substituted by lower alkyl groups.

In addition to the aforesaid a-arnino-substituent and the monovalent substituents in the B-positions, as defined, the anthraquinone nucleus can contain substituents in the further a-positions, e.g., hydroxyl groups, nitro groups, primary amino groups or secondary amino groups which are substituted, e.g., by a lower alkyl group such as the methyl, isopropyl or see. butyl group, a cycloalkyl group such as the cyclohexyl group, an aryl group such as the phenyl, toluyl, 2,4,6- trimethylphenyl, phenoxyphenyl or phenylazophenyl group, as well as by a further ROOCO--Y-(X- Q)n1g A represents in particular the radical of an anthraquinone dyestuff which is linked with the aminosubstituent --NH(Q-X),, -YOCOOR in an a-position and selected from tar-anthraquinonyl radicals of the formu- -las wherein W represents halogen such as chlorine or bromine, or a grouping bound to the anthraquinone nucleus by means of an aliphatic carbon atom and selected from lower alkyl and lower alkyl substituted by phenyl or by the grouping OCOOR whereby R has the meaning given under Formula I, or

a grouping bound to the anthraquinone nucleus by means of a carbon atom comprising bound diand/0r trivalent heteroatoms and selected from cyano, lower alkoxy-carbonyl, phenoxy-carbonyl, carbamoyl, N- lower alkyl carbamoyl or N,N-di-lower alkyl carbamoyl, or

a grouping bound to the anthraquinone nucleus by means of a hetero atom and selected from lower alkoxy, lower alkylthio, phenoxy, phenylthio, lower alkylsulphonyl, lower alkoxysulphonyl, sulfamoyl, N-lower alkyl sulfamoyl or N,N-dilower alkylsulfamoyl;

Y a V2 wherein one of V,, V and V represents the grouping NH--(- QX),. -Y-O-COOR wherein Q,X,Y,R and n have the meaning given above and the other two Vs each represents hydrogen or hydroxy;

wherein T represents lower alkyl, cycloalkyl, phenyl, lower alkylphenyl such as toluyl or 2,4,6-trimethylphenyl, or phenylazophenyl or phenoxyphenyl, and

wherein one of V, and V is hydrogen, or hydroxy and the other is hydrogen, hydroxy or if the first V is hydroxy also nitro.

As arylene radical, Q represents, in particular, a phenylene radical which is optionally substituted by halogen, such as chlorine or bromine, lower alkyl or lower alkoxy groups, or it may also represent a phenoxyphenylene or phenylene-azo-phenylene group.

If X represents a hetero atom, then this is sulphur or preferably oxygen. If X represents a hetero grouping, thenthisis,e.g.,an i. M

notes in particular a diethyleneor dipropylene-oxy group.

If R represents an aliphatic radical, then it can be, e.g., a straight-chained or branched, optionally substituted loweralkyl or alkenyl group (in the latter case especially a 2-alkenyl group) having preferably up to five carbon atoms. As substituents, these aliphatic radicals and especially the alkyl group can contain, e.g., halogens such as fluorine, chlorine or bromine, or a lower alkoxy group as well as a carbocylic ring of, in particular, aromatic character such as the phenyl radical, optionally substituted by chlorine or methyl groups, or heterocyclic rings such as the thienyl-(2)-, furyl-(2 or tetrahydrofuryl-(2 )-radical.

Cycloaliphatic radicals denoted by R are, e.g., cycloalkyl groups with preferably 5- or 6-membered rings, and especially the cyclohexyl or methylcyclohexyl group.

When R represents an aromatic radical, then this radical preferably belongs to the benzene series; it can contain usual non-ionogenic ring substituents. Such substituents are, e.g., halogens such as fluorine, chlorine or bromine, lower alkyl or lower alkoxy groups, preferably chlorine or methyl groups.

R represents, in particular, a lower alkyl group, unsubstituted or substituted by chlorine or bromine, a lower alkenyl group, cyclohexyl or a phenyl group which may be substituted by one or two substituents selected from chlorine and lower alkyl.

Starting materials of the Formula II are for the most part known or they can be produced by methods known per se, e.g., by reaction of an a-halogen anthraquinone of the Formula IV,

A (Hal) wherein A has the meaning given under Formula I and Hal denotes chlorine or bromine, with an amine of the Formula V,

wherein Q, X, Y and n have the meaning given under Formula I.

Suitable a-halogen anthraquinones of the Formula IV are e.g., 1-amino-2,4-dibromoanthraquinone, 1-

methylamino-4-bromoanthraquinone, lisopropylamino-4-bromoanthraquinone, lcyclohexylamino-4-bromoanthraquinone, 1- phenylamino-4-bromoanthraquinone, 1-(2,4' ,6- trimethylphenylamino )-4-bromoanthraquinone, and

suitable amines of the Formula V are, e.g. ethanolamine, l,3-propanolamine, l-amino-2-, 3- or 4-fi-hydroxyethoxybenzene, or l-amino-4-[3;ydihydroxypropoxybcnzene, l-amino-2-, -3- or -4-B-hydroxyethylaminobenzene, l-aminobenzene-2-, -3- or -4-carboxylic acid-B-hydroxyethylamide, l-amino-benzene-2-, -3- or -4-sulphonic acid-B- hydroxyethylamide.

The halogen-formic acid ester of the Formula III, usable as starting materials, are likewise for the most part known.

Such esters are: halogen-formic acid-alkyl, -alkenyl, -aralkyl, -cycloalkyl or -aryl esters, e.g. chloroformic acid-methyl ester, chloroformic acid-ethyl ester, chloroformic acid-isopropyl ester, chloroformic acid-amyl ester, chloroformic acid-allyl ester, chloroformic acidcyclohexyl ester, chloroformic acid-benzyl ester, chloroformic acid-p-methylbenzyl ester, chloroformic acidp-chlorobenzyl ester, chloroformic acid-ychloropropyl ester, chloroformic acid-phenyl ester, chloroformic acid-2,4-dimethylphenyl ester or chloroformic acid-4-chlorophenyl ester, as well as the corresponding bromine derivatives.

The reaction of the anthraquinone compounds of the Formula II with the halogen-formic acid esters is advantageously performed at low temperatures (0-50C) in the presence of acid-binding agents and, optionally, in inert organic solvents,

Suitable as acid-binding agents are, in particular, tertiary nitrogen bases such as pyridine, picoline, quinoline, lepidine, aliphatic amines such as trimethylamine and triethylamine, anilines such as N,N-dimethylaniline and N,N-diethylaniline, also alkali metal or alkali earth metal carbonates, hydrogen-carbonates or hydroxides such as sodium hydrogen-carbonate, potassium carbonate, barium carbonate, sodium hydroxide or barium hydroxide. Suitable inert organic solvents are optionally halogenated or nitrated aromatic hydrocarbons such as toluene, xylenes, chlorobenzene, dichlorobenzene or nitrobenzene, as well as aliphatic halogenated hydrocarbons such as chloroform, carbon tetrachloride or tetrachloroethane, also lower aliphatic ketones such as acetone and cyclic ethers such as dioxan or tetrahydrofuran.

Preferred anthraquinone dyestuffs of the Formula I, which are characterized by a very good afiinity, by very good levelling and build-up properties as well as by a good fastness to sublimation and light, correspond to the Formula VI,

ii NH- X' Alkylen-OCOOR" (VI) wherein W represents halogen such as chlorine or bromine, the cyano group, a lower alkyl group, a carboxylic acid amide or sulphonic acid amide group, optionally substituted by lower alkyl groups, a lower alkoxy-carbonyl group or a lower alkylsulphonyl group,

X represents the direct bond, oxygen, the NI-I-, -CONH 0r SO NH--group,

alkylene" represents a lower alkylene group and R" represents a lower alkyl group or a phenyl radical, optionally monosubstituted by halogen such as chlorine, or lower alkyl groups such as methyl, and wherein the benzene ring B is optionally further monosubstituted by halogen such as chlorine, lower alkyl or lower alkoxy groups.

Further anthraquinone dyestuffs, according to the invention, which likewise are characterized by a good affinity and levelling property, as well as by good fast-' ness to light and sublimation of the polyester dyeings produced therewith are those of the Formula VII,

(VIII) wherein A has the meaning given under Formula I and V represents halogen, such as chlorine, bromine or fluorine, a hydroxyl, nitro or methoxy group, with an amine of the Formula IX,

H NQXYOCOOR wherein Q, X, Y and R have the meanings given under Formula I, whereby the starting materials are so chosen that the final dyestuff contains no groups dissociating acid in water.

Starting materials of the Formula VIII, applicable according to the invention, are for the most part known. Examples of these are: l-amino-4-bromoanthraquinone, l-arnino-4-chloro-anthraquinone, lamino-4-hydroxy-anthraquinone l -amino-4-nitroanthraquinone, l-amino-4-methoxy-anthraquinone, 1-amino-2-carbomethoxy-4-bromoanthraquinone or 1 ,4-dihydroxy-anthraquinone.

Amines of the Formula IX to be reacted with the latter compounds of the Formula VIII can be produced in a known manner e.g., by reacting a nitro compound of the Formula X,

NO -QX-YOI-I (X) wherein Q, X and Y have the meaning given under Formula I, with a halogeno formic acid ester of the Formula III given above, whereby the condensation is performed as described in the foregoing, and then reducing the nitro group to the amino group.

Starting materials of the Formula VIII, wherein V represents the hydroxyl group, are advantageously reacted in the presence of boric acid or alkali metal salts thereof, with the amines of the Formula IX. If these amines are further substituted in both o-positions, then it is advisable to also use, together with boric acid, a l,3-alkane-diol, which forms a cyclic ester with the boric acid, or a 1,3-alkane-diol boric acid ester.

If, as starting material, an anthraquinone compound of the Formula VIII is used, wherein V represents halogen, especially chlorine or bromine, it is advantageous to operate in the presence of copper or of a copper compound, such as copper-(I)-chloride, and with an acid-neutralizing agent, preferably at increased temperature. Suitable as an acid-neutralizing agent is, in particular, an excess of the amine of the Formula IX, optionally together with an alkali metal salt of a fatty acid having at most five carbon atoms or of carbonic acid, such as sodium or potassium acetate and sodium bicarbonate or sodium carbonate respectively, or together with an alkali metal hydroxide such as sodium or potassium hydroxide, or also magnesium oxide.

The reaction of the starting material of the Formula VIII, wherein V represents a methoxy or a nitro group, with the amines of the Formula IX is performed, for example, with an excess of amine in the melt at about l250C, preferably however in an organic solvent boiling at 100-220C. Suitable solvents are, e.g., optionally halogenated or nitrated, aromatic hydrocarbons such as xylols and mono-chlorobenzene or dichlorobenzene and nitrobenzene respectively, also alcohols such as alkanols having at least four carbon atoms, e.g. butanol or amyl alcohol, or alkylene glycols and monoalkyl ethers thereof. The preferred solvent is nitrobenzene.

The new anthraquinone dyestuffs of the Formula I are yellow to deeply colored, crystalline, difficultly water-soluble substances. By recrystallization from organic solvents, they can be obtained analytically pure, but such a purification is generally not required for their use in dyeing.

They are suitable for the dyeing or printing of synthetic organic fibers, e.g., for the dyeing of textile fibers made from linear high-molecular esters of aromatic polycarboxylic acids with polyfunctional alcohols, such as polyethylene glycol terephthalate or poly-(1,4- cyclohexanedimethylol-terephthalate), as well as for the dyeing of textile fibers made from cellulose-2-, 2 r-acetate or cellulose triacetate. These dyestuffs can also be used, however, for the dyeing of synthetic polyamide fibers such as polyhexamethylene adipic amide, polycaprolactam or polyaminoundecanoic acid, and also for the dyeing of polyolefins, especially polypropylene fibers, as well as for the dyeing of polyamide in the mass.

Furthermore, they are suitable, depending on the composition, for the dyeing or pigmenting of lacquers, oils and waxes, as well as cellulose derivatives, particularly cellulose esters, such as cellulose acetate, in the mass.

The dyeing of the stated fiber materials with the difiicultly water-soluble anthraquinone dyestuffs, according to the invention, is preferably performed from aqueous suspension. It is therefore advantageous to finely divide the final materials of the Formula I, usable as dispersion dyestuffs, by grinding them with dispersing agents and possible with further grinding auxiliaries.

Anionic dispersing agents, which are suitable for purpose are, e.g., the alkylaryl sulphonates, the condensation products of formaldehyde with naphthalene sulphonic acid, the lignin sulphonates, suitable nonionogenic dispersing agents, are, e.g., the fatty alcohol or alkylphenyl-polyglycol ethers with a higher alkyl radical.

The dyeing of the polyester fibers with the difficultly water-soluble dyestuffs, according to the invention, from aqueous dispersion is carried out by the usual processes for polyester materials. Polyesters of aromatic polycarboxylic acids with polyvalent alcohols are preferably dyed at temperatures of above 100C under pressure. But the dyeing can also be performed at the boiling point of the dye bath in the presence of dye carriers, e.g., phenylphenols, polychlorobenzene compounds or similar auxiliaries, or using the Thermosol process, i.e., pad-dyeing with subsequent treatment in the heat, e.g., thermofixing at l2 10C. Cellulose-2 r-acetate fibers are preferably dyed at temperatures of 8085C, whereas cellulose triacetate fibers, as well as synthetic polyamide fibers, are advantageously dyed at the boiling point of the bath. The use of dye carriers is not necessary in the dyeing of cellulose-2 /2-acetate fibers or polyamide fibers. Anthraquinone dyestuffs, according to the invention, can also be used for the printing of the stated materials using normal methods.

The anthraquinone dyestuffs of the Formula I, usable as dispersion dyestuffs, draw on to the previously mentioned hydrophobic organic fiber material, especially on to polyethylene glycol terephthalate fibers, very well and they produce thereon strong yellow, orange, red, violet, blue and green dyeings which have very good fastness to light, washing, rubbing, perspiration, sublimation, solvents and decatising.

Furthermore, anthraquinone dyestuffs, according to the invention, can very well be used in admixtures with other dispersion dyestuffs, which are fast to sublimation, for the dyeing of textile material using the paddyeing/thermofixing process. Particularly worthy of note is the fact that dyestuffs of the Formula I, produce, in the dyeing of closely woven polyester fabrics or firmly twisted polyester yarns, even dyeings right through. The new dyestuffs of the Formula I also possess the valuable property of being able to produce on textured polyester fibers, e.g., Crimplene," very deep non-streaky dyeings which, moreover, have good fastness properties, particularly fastness to light and sublimation. The anthraquinone dyestuffs of Formula I also have good stability in the dye liquor and to boiling.

The following examples illustrate the invention. The temperatures are given in degrees centigrade.

EXAMPLE 1 Y xinQ-o 011101120 00 0 can precipitates out in the form of beautiful dark violet blue crystals; the dyestuff is filtered off, washed with methanol and dried.

From aqueous suspension, the finely divided dyestuff dyes polyethylene glycol terephthalate fibers in even,

clear blue shades having good fastness to light, rubbing and sublimation.

The same dyestuff is obtained if the 27 g of chloroformic acid butyl ester are replaced by 36 g of bromoforthe following Table 1, Column ll, are used, and in place of the 27 g of chloroformic acid butyl ester, equivalent amounts of a halogen-formic acid ester listed in Column III of the same table, applying otherwise the same mic acid butyl ester with otherwise the same proce- 5 procedure as described in the example, then dyestuffs dure. are obtained which dye polyethylene glycol terephthal- If, in place of the 45.3 g of l-amino-2-bromo-4-(4'-B- ate fibers in the shades given in Column IV of this table, hydroxyethoxy)-phenylamino-anthraquinone, equivathese shades likewise having fasmess to light and to lent amounts of an anthraquinone compound given in sublimation.

TABLE I Shade on polyethylene glycol tereph- No. Anthraqulnonc compound Halogen-formic acid ester thalate fibres 2 (I? 1TH; (ll-00001120111011; Blue.

H 0 NH -OCH2CH2OH 3 Same as above /CH3 Do 4 do Cl-OOOC H Do. 5 ol-ooocm D0.

6 .t 5') IIIH'J Cl-C 0 0on1 D0.

II 0 NH CH2CH2OH 7 f 171m Cl-C OOCH; Do-

CONHCHaCHzOH 8 O NH: 01-0 OOCH Cl Do.

II CH; A c 0 N H l 0 NH 0 CHzCHzCHzOl-I E) t O N H: DO.

U I 0 1 0 O O Q 0 NH- -CHa I 3" s OHNHCHICIiCHiOH l0 t. 0 NH, Do.

ll c1c 0 0 H CO0C1H NH-cm CHaOH Shade on polyethylene glycol tereph- N0. Anthraquinone compound Halogen-formic acid ester thalate fibres 19 O NH; D0.

II II 010 0 0 CH3 0 IQHQ-S 0201120111011 20 IIIH; ClCOOC3H7 Do.

A 0 0 NH CH3 ll 0 NH- CHzCHzOH 21 fl) ITIH CICOOCHZCIIZCHZCIIJ D0.

H I 0 NH--O 01120112011 22 Same as above Do.

Cl-C O O- 4 C1C0OC1H Do.

Cl-COOOH; D0.

26 E ITIH: 01-0000211, D0-

/\ 0 o 0 Cali;

II 0 NH (BCHzCHzOH 27 0 NH; 01-00 o 0211, Do.

H l w-c 0001115 U 0 NH CH:

OzNHCHzCHzOH 2s 0 NH; 010 0 0 0211, Green.

CHzOCHa NHN=NOCH2CH2OH 2o 0 1;:112 01-0 0002115 Blue.

C O 0 CzHa ll 0 NH CIla OzNHClhOUzOIi EXAMPLE 30 32.6 g of l.4-bis-B-hydroxyethylaminoanthraquinone are partially dissolved in 150 g of pyriis then precipitated in fine-crystalline form by the addition in portions of 30 g of water; the dyestuff is filtered off, washed with ethanol and dried.

dine and to this mixture are added dropwise, while it is 5 From the aqueous dispersion of the finely divided being vigorously stirred, 62.6 g of chloroformic acid dyestlfff Polyethylene glycol terephthalate fabric 15 phenyl ester in the course of 20 minutes at 0l0. Stirdyed y Clea! and even p blue Shadesring is maintained for a further 1 hour at room temper- By using, in place of the 32.6 g of 1.4-bis-B-hydroxyeature and the formed dyestuff of the formula 1 0 thylamino-anthraquinone, equivalent amounts of an anthraquinone compound given in the following Table 0 NHCH2CHZOC0O 2, Column I], and in place of the 62.6 g of chloroformic acid phenyl ester, equivalent amounts of a halogenformic acid ester listed in Column III of the same table, l 5 with otherwise the same procedure as described in the y example, dyestuffs are obtained which dye polyethyl- IlIHCHzCH2OCO0 ene glycol terephthalate fibers in the shades given in Column IV of this table.

" WM%N firmi f H Shade on polyethylene glycol terophthalate No. Anthraquinone compound Halogen-formic acid ester fibres s1 0 NHCHZCIIZOH Blue.

/II\ I ClCO0- -cm 0 NH cHicHiofi 32 0 Nficmcnion Do.

II I 0 NHCHiCHiOH 33 0 NHCHZCHZOII D0.

)\ l c1co0cni II I 0 NHCHiCIIiCHiOH 34. Red.

(H) Nncmcllion 01000-c1 HOCHzCHzNH i 3s HOCHQCHZNH 0 NHOHZCHQOH Red.

- /ll\ c1c00 an" on Nucuienqon (110000411 00 mue.

o Mien-10112011 37.-.. 0 Nucliicniou' "156*."

/ll\ ClCOO- -CH3 l 0 NHCHzCHiOH l7 m l8 i u "w '-TABLE 2 Continued W Shade on polyethylene glycol terephthalate No Anthraquinone compound Halogen-formic acid ester fibres 38 O NHCI'I2CHCIIQOI{ Do.

II on ClCOOCH2 a 1 l (i NIIC! gCII-CH2OII 39 O NHC}I2CII20}I Red.

] ClCOO- 40 Cl-COC1H5 Blue-green.

/!0\ 17H- -O-CH CH OI II. I O NH OCH CH 0H /|O\ I;IH OCIIzCHzOII ClCOO II 0 NH- OCH2CH OH 4 CICOOC2H5 D0.

/?\ IIIH -(OCH2CH2)2OH O NH- -(OCH2CH2)2OH EXKMFIIEE A M is precipitated but in fine-crystalline form by the addit" n f of ethanol. Th d uff i fil ered off, 35.8 g of 5,8-dihydroxy-l,4-b1s-B-hydroxye- 50 lo 0 300 g e yest S t thylamino-anthraquinone are stirred up in a mixture of 300 g of chlorobenzene and 50 g of triethylamine for half an hour at 50. The suspension is then cooled to 5-l0 and, at this temperature with vigorous stirring, 43.4 g of chloroformic acid ethyl ester are added dropwise in minutes. The reaction is completed by subsequent stirring for 4 hours at the same temperature and the formed dyestuff of the formula (|)H O NHCHaCHzOCOOCzHs HY NHCHaCHzO C O 0 C211:

washed with ethanol and dried.

Cellulose triacetate fibers and polyethylene glycol terephthalate fibers are evenly dyed in the aqueous dispersion of the finely divided dyestuff in clear greenblue shades.

By using 62 g chloroformic acid phenylester instead of 43.4 g of chloroformic acid ethylester, otherwise performing the reaction under the same conditions, a further dyestuff is obtained which gives on polyethyleneglycol terephthalate fibers a green-blue shade.

By replacing, in the above example, the 35.8 g of 5 ,8- dihydroxyl ,4-bis-B-hydroxyethylaminoanthraquinone by 41.8 g of 5,8-dihydroxy-l,4-bis-B,-ydihydroxypropylamino-anthraquinone, or by 44.6 g of 5 ,8-dihyclroxy-l ,4-bis-B-( B'-hydroxyethoxy )-ethylamino-anthraquinone, otherwise performing the reaction under the same conditions, very similar green-blue dyestuffs are obtained.

EXAMPLE 44 To a suspension of 46.5 g of l-hydroxy-2-benzyl-4- (3 '-B-hydroxyethoxy )-phenylamino-anthraquinone and 7 g of potassium carbonate in 350 g of chlorobenzene are added dropwise in the course of half an hour at 0-l0, while the suspension is being vigorously stirred, 27 g of chloroformic acid ethyl ester and the reaction mixture is then maintained for a further 2 hours at this temperature. With the addition to the mixture of 150 parts of methanol, the dyestuff of the formula (I) OH QCH precipitates out in fine-crystalline form. It is filtered off, washed with methanol and water and dried.

In aqueous dispersion, the finely divided dyestuff draws on to polyethylene glycol terephthalate fibers with a clear violet-blue shade having good fastness to sublimation.

20 these shades likewise having fastness to sublimation.

TABLE 3 Shade on polyethylene glycol terephthalate No. Anthraquinone compound Halogen-formic acid ester fibres 45 O OH ClCOOCzH5 Violet-blue.

II I O NH- 0 CHaCHzOH 46 f) (])H ClCOOCzH5 D0.

ll 0 NH- $CH2CH1OH 47 (H) (|)H ClCOOCHzCH-=CH2 U l O NH O CHaCHaOH 48 (I? (|)H 01000001; Violet.

O NH CH2CH2OH 40 (H) ()H CICOOC H Violet-blue.

0 NH--NHcmcmu-non Anthruquinone compound TABLE 3.Continued 6i: u I

NH): h) (Hi II I OCHJ

Halogen-formic acid ester ClCOO ClCOOCzHs C10 0 O C2H ClCOOCzHs ClCOOCzHs ClCOw-Q Shade on polyethylene glycol terephthalatc fibres Blue.

Blue.

Reddlsh-bluv.

Shade on polyethylene glycol terephthalate No. Anthraquinone compound Halogenformic acid ester fibres 66 .4 )H 010 o cam V Violet-blue.

II I 0 NH l OCHICHaOH 67 R (|)H 0100001115 Do.

U l O NH O- OCH2CH2OH as on W V Y CICOOOH; V eg digililifi.

l ii NHQ-S-CIhCHzOH 69 (I? (|)H 010000.119 Violet.

H l O NH -SO2CH2CH2OH 70 (H) (IJH 010000113 Violet-blue.

H 0 NHQ-(OCHgCHzCHzhOH 71 v. (H) CIJH ClCOOCzH Viole u 0 NH -Cl iiozocmcmoii 72 fl) (Im /cn3 Violet-blue.

/\ ClCOOCH NI-I -o- OCH2CH10H EXAMPLE 73 i formula 28 g of chloroformic acid methyl ester are added 3 dropwlse at l0-l5, while vigorous stirrlng is ma1ntained, to 33.8 g of l-isopr0pylamino-4-y-hydroxyo Nil-C propylamino-anthraquinone in 180 g of N,N- A

dimethylaniline and the reaction mixture is stirred at this temperature until the starting material is no longer v detectable in the thin-layer chromatogram. By the ad- Y dition of g of methanol, the reaction product of the NHCH2CH2CH2O C 0 OCH:

is precipitated from the solution. It is filtered off, washed with cold methanol and dried.

ln aqueous dispersion of the finely divided dyestuff, pure blue shades can be produced on synthetic fibers such as cellulose-2 triacetate, polyamide and polyethylene glycol terephthalate fibers. 5

By using, in place of 33.8 g of l-isopropylamino-4-7- amounts of an anthraquinone compound given in the following Table 4, Column II and, in place of the 28 g of chloroformic acid methyl ester, equivalent amounts of a halogen-formic acid ester of Column III, with otherwise the same procedure as described in the example, dyestuffs are obtained which dye polyethylene glycol terephthalate fibers in the shades listed in Column IV hydroxypropylamino-anthraquinone, equivalent of this table.

V V a V V V A 1:-A."-BLE4A*""""' 4 Shade on polyethylene glycolter- Halogen-formic ephthalatc No. Anthraquinone compound acld ester fibres 74 /CH; ClCOOClig Blue.

$1) NH C H H l 0 NIICH CH OH 75 Same as above CICOOCZH: D0.

76 /CII3 CICOOCHJ D0.

E) NH-CH CHQCH:

II I O NHCHQCHZCHZCHQOIi 77 NHCH3 CICOOCH; D0.

II O NHCHQCHQCHZOH II I O NHCHrCH-OH Hi. .o fi-,V v h 79 O NH; CH3 D0.

ll C10 0 0 CH C ONHz NHCIfiCH OlI 80 0 Nil; l)o.

ll (:10 0 0- 1r s(:ll,0m

O NlIClhCII CH OII XL IIIII; ClCOOCzII; Do.

II NllClI CIL-ClhOll 35.8 g of l-phenylamino-4-B-hydroxyethylaminoanthraquinone are completely dissolved, by heating, in 400 g of pyridine and, after rapid cooling of the solution to O10, 24.5 g of chloroformic acid propyl ester are added dropwise, while the solution is being well stirred, within 20 minutes. The reaction is then completed by a brief heating to 20-25, whereupon the formed dyestuff of the formula 3% precipitates, with the addition of 80 g of water, in a fine form. The dyestuff is filtered off and dried.

From aqueous dispersion, the finely divided dyestuff draws on to polyethylene glycol terephthalate fibers to 5 give a deep blue shade. The dyeings have good fastness to light, rubbing and sublimation.

By using, instead of the 35.8 g of l-phenylamino-4-B- hydroxyethylamino-anthraquinone, equivalent amounts of an anthraquinone compound given in the 10 following Table 5, Column II and, instead of the 24.5 i"

m g of chloroformic acid propyl ester, equivalent amounts 3 NH of a halogen-formic acid ester listed in Column III of A the same table, with otherwise the same procedure as stated in the example, dyestuffs are obtained which dye 15 polyethylene glycol terephthalate fibers in the shades Y given in Column IV of this table, these shades too hav- NHOHzCHzOCOOCaH1 ing fastness to light and sublimation.

TABLE 5 Shade on polyethylene glycolter- Halogen-formic ephthalate Number Anthraquinone compound acid ester fibres s3 olcooomomom Blue.

ll 0 NHCHZCHZOH 84 (3H3 CICOOCHQ Do.

if 1 AI CH3 II I 0 NHCHzCHaOH 85 ClCOOCzHlCl Green.

5!) NH- N=N 0 NHCHnCHzOH 86 010000113 Blue. (H) NH- 0 NHCHICHQOH 87 CH3 Do.

0 NH- CH3 II I 01000011301 1 V -CH3 II I o NHCHaCHCHnOH 88 cloooczHi f ITIH- OCH:CH2OH Blue-green. V CHa ll 1 0 NHOCH:CH2OH ClCOOClHB TABLE 5 Continued Shade on polyethylene glycolter Halogen-formic ephthalate Number Anthraquinone compound acid ester fibres so 01000011 D0.

3 lTIH OCH2CHzOCH2CH2OH 0 NII OCH2CII2OCH2CH2OII no 010000111 D0.

0 NH OCHzClI-Cll;0li II B H 0 NH0CHzCH-CH2OH EXAMPLE 91 30 precipitates, after the addition of250 ml of methanol,

. st iv l 32 g of y fi y y y almo quantitat e y from the deep red solution, the

anthrapyridone are dissolved in 250 ml of pyridine and to this solution are added dropwise at 0-l0, while it is being vigorously stirred, 31.3 g of chloroformic acid phenyl ester in the course of half an hour. The reaction is completed after a further 3 hours at this temperature. The dyestuff of the formula i 1 YQW dyestuff is filtered off, washed with methanol and dried.

Polyethylene glycol terephthalate fibers are dyed in the aqueous dispersion of the finely divided dyestuff very uniformly in clear red shades having good fastness to sublimation and rubbing.

By using, instead of the 32 g of N-methyl-4-B-hydroxyethylamino-anthrapyridone, equivalent amounts of an anthraquinone compound given in the following Table 6, Column II and, instead of the 31.3 g of chloroformic acid phenyl ester, equivalent amounts of a halogenformic acid ester listed in Column III of the same table, with otherwise the same procedure as described in the example, dyestuffs are obtained which dye polyethylene glycol terephthalate fibers in the shades given in Column IV of this table, these shades too having fastness to sublimation.

TAB LE 6 Shade on polyethylene glycol ter- Halogen-l'ormic ephthalate No Anthraquinone compound acid ester fibres J2 H ClC0OC5Hn Yellow.

Nli CH:CII=OII J3 l|-|1-- T ClCOOClIz-CII=CH1 Orange-yellow.

@ H: ll 1 O NHCHzCI-InCHzOlI M N-NCH Red.

NlICIIiClIrOII crooocm-Q TABLE 6 -Continued Shade 011 polyothylem-v glycol ton Halogen-formic u )lllllltlflltl N0. Autlu-nquluoiw compound acid vslvr ll mus J ClCOOC-lhCl Rod.

II I 0 NH- OCH2CH2OH 96 0 ClCOOCzHa Red.

H CH3 CH l CH2 ll 0 NH-CHZCHQQH 07 Same as above CIC 0 O EXAMPLE 98 NHQ A mixture of 18 g of 1,4-dihydroxyanthraquinone 0000113 and 6 g of leucol ,4-dihydroxyanthraquinone is stirred, after the addition of 38 g of 4-isobutoxycarbonyloxyethoxyaniline and 12.5 g of boric acid in 100 ml of methyl alcohol, for 4 hours at 60 65. After this pe- 0 NHCHCH1OCOOCH3 riod of time, the dark-violet-colored reaction mixture is diluted with a further 100 ml of methyl alcohol and at room temperature, the dyestuff of the formula i in-goomcnho-oo-ocm-cg EXAMPLE 99 36 g of l-amino-4 bromoanthraquinone-Z-carboxylic acid methyl ester are homogeneously stirred together with 58.5 g of 4-methoxycarbonyloxyethyl aniline, 22

y g of potassium acetate and 0.5 g of cuprous chloride for 18 hours in 200 ml of n-butyl alcohol at l10-l 15. During this period of time, the reaction mixture turns blue. The dyestuff of the formula is precipitated, in crystalline form, by the addition of 150 ml of ethyl alcohol, filtered off at room temperature, washed with ethyl alcohol and water and dried at 100.

From aqueous dispersion, the finely divided dyestuff dyes polyethylene glycol terephthalate fibers in intensive blue shades having good fastness to sublimation.

EXAMPLE 100 2 g of the dyestuff obtained according to example 1 are dispersed in 4,000 g of water. To this dispersion are added, as swelling agent, 12 g of the sodium salt of ophenylphenol as well as 12 g of diammonium phosphate and 100 g of yarn made from polyethylene glycol terephthalate are dyed for l a hours at -98. The dyeing is rinsed and subsequently treated with aqueous sodium hydroxide solution and a dispersing agent.

In this manner is obtained a deeply colored, dark violebblue dyeing having fastness to light and sublimation. If, in the above example, the g of polyethylene glycol terephthalate yarn are replaced by 100 g of cellulose triacetate fabric, dyed under the stated condi' tions and afterwards rinsed with water, a clear blue dyeing is obtained having very good fastness to washing and to sublimation.

EXAMPLE lOl In a pressure-dyeing apparatus, 2 g of the dyestuff, obtained according to example 2, are finely suspended in 2,000 g of water containing 4 g of oleylpolyglycol ether. The pHvalue of the dye bath is adjusted to 4-5 with acetic acid.

100 g of fabric made from polyethylene glycol terephthalate are then introduced at 50, the bath is heated within 30 minutes to 140 and dyeing performed for 50 minutes at this temperature. The dyeing is subsequently rinsed with water, soaped and dried. Under these conditions is obtained a deeply colored blue dyeing having fastness to perspiration, light and sublimation.

The dyestuffs described in the other examples produce, with application of this process, dyeings of equal quality.

EXAMPLE 102 Polyethylene glycol terephthalate fabric is impregnated on a padding machine at 40 with a dye liquor of the following composition:

g of the dyestuff, obtained according to example 88, finely dispersed in 7.5 g of sodium alginate 20 g of triethanolamine 20 g of octylphenolpolyglycol ether and 900 g of water.

The fabric, squeezed out to ca. 100 percent, is dried at 100 and afterwards fixed during seconds at a temperature of 210. The dyed material is rinsed with water, soaped and dried. Under these conditions is obtained a deeply colored green-blue dyeing having fastness to rubbing, light and sublimation.

The dyestuffs described in the other examples produce, with application of this process, dyeings of equal wherein W represents chlorine, bromine, cyano, lower alkyl, phenyl lower alkyl, lower alkoxycarbonyl, lower alkylsulfonyl or wherein Z represents CO- or SO, and R and R each independently of the other represent hydrogen or lower alkyl,

3. A dyestuff according to claim 1 of the formula 0 NH: W V V fin V V /CHx (IO-N l I! CH: I

4. A dyestuff according to claim 1 of the formula 6 his" oo-o-C1H5 l NH -0 ornom-o-co-o 5. A dyestuff according to claim 1 of the formula UNTTTD STATES PATENT oTTTeT QERTEFECATE UP CEE'MDE Patent No. Dated May 22, 1973 In n r(s) HANS-PETER KOLLIKER ET AT. T

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

On the Title Page:

After "[21] Appl. I No. 24,809" iri sert T [30] Foreign Application Priority Data April 2, 1969 Switzerland 5025/69"- Signed and sealed this 25th day of December 19730 (SEAL) Attest:

EDWARD M.FLETGHEB,JR. RENE D. TEGTMEYER Arresting Officer Acting-Commissioner of Patents FORM po'mso uo'ss) Y uscoMM-Dc scan-ps9 t u.s. GOVERNMENT PRINTING OFFICE: [969 0-366-334 

2. A dyestuff according to claim 1 of the formula
 3. A dyestuff according to Claim 1 of the formula
 4. A dyestuff according to claim 1 of the formula
 5. A dyestuff according to claim 1 of the formula 